Molekula
Triphenylantimony
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Triphenylantimony is an organoantimony compound used in organic synthesis and as a catalyst in various chemical reactions. It appears as a white to pale yellow solid and is sensitive to moisture and air. CAS: 603-36-1, Molecular formula: (C6H5)3Sb, Molecular weight: 353.07 g/mol, Storage: Ambient, Signal word: Danger.
Molekula supplies Triphenylantimony at ≥99% purity (HPLC) in 25 g packs, from £33.60 inc. VAT. It is made or sourced to order. Every batch ships with a certificate of analysis, and safety data sheets are available in 8 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
On backorder — expected to ship by 5 December 2026
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £28.00 per pack ex VAT · £33.60 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Other grades of Triphenylantimony
| Grade | Purity | Price |
|---|---|---|
| Triphenylantimony 50% in ethyl acetate | — | Price on request |
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white crystal |
| Melting Point | 50.0° - 54.0°C |
| Purity (HPLC) | ≥99% |
| Loss on Drying | ≤0.5% |
| Chlorine (Cl) | ≤0.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 113 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.00000973 mmHg |
Source: PubChem CID 11777 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 11733427 |
| CAS Number | 603-36-1 |
| IUPAC Name | triphenylstibane |
| EC Number | 210-037-6 |
| Molecular Formula | (C6H5)3Sb |
| Molecular Weight | 353.07 |
| Exact Mass | 352.0212 |
| SMILES | C1=CC=C(C=C1)[Sb](C2=CC=CC=C2)C3=CC=CC=C3 |
| InChIKey | HVYVMSPIJIWUNA-UHFFFAOYSA-N |
| InChI | InChI=1S/3C6H5.Sb/c3*1-2-4-6-5-3-1;/h3*1-5H; |
| PubChem CID | 11777 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2931.90.6000 |
| Tariff Code | 2931900090 |
Safety & GHS
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Toxic
GHS06
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Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H332 Harmful if inhaled
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P309+311 IF exposed or you feel unwell: Call a POISON CENTER or doctor/physician
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- Antimony(III)triphenyl
- HVYVMSPIJIWUNA-UHFFFAOYSA-
- HVYVMSPIJIWUNA-UHFFFAOYSA-N
- Stibine, triphenyl-
- Trifenylstibin
- Triphenylantimony(III)
- Triphenylstibane
- TRIPHENYLSTIBINE
Frequently asked questions
What is triphenylantimony used for?
Triphenylantimony is primarily used as a reagent in organic synthesis, particularly in the formation of carbon–antimony bonds and as a catalyst in certain coupling reactions.
What is the chemical formula and molecular weight of triphenylantimony?
The formula is (C6H5)3Sb and the molecular weight is 353.07 g/mol.
How should triphenylantimony be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for triphenylantimony?
Molekula supplies triphenylantimony in high-purity grade suitable for laboratory and research use.
Can Molekula supply triphenylantimony in bulk?
Yes, Molekula can supply triphenylantimony in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a purchase of triphenylantimony?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with GHS standards.
Where can I buy Triphenylantimony?
Directly from Molekula, which lists Triphenylantimony in 25 g packs from £33.60 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is Triphenylantimony dangerous goods for shipping?
Yes. Triphenylantimony ships as dangerous goods: UN2811, class 6.1, packing group III.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.